8 lines
167 B
JavaScript
8 lines
167 B
JavaScript
|
"use strict";
|
||
|
|
|
||
|
|
module.exports = function () {
|
||
|
|
var sign = Math.sign;
|
||
|
|
if (typeof sign !== "function") return false;
|
||
|
|
return (sign(10) === 1) && (sign(-20) === -1);
|
||
|
|
};
|